CDN Reliability Rankings
All 5 CDN providers ranked by 30-day availability. Independent measurement, no provider affiliation. Refreshed on every page load.
| Rank | Provider | Status | 7d | 30d 30d availability | 90d |
|---|---|---|---|---|---|
| #1 |
AWS CloudFront
|
Operational | 100.00% |
|
100.00% |
| #2 |
Bunny.net (BunnyCDN)
|
Operational | 100.00% |
|
100.00% |
| #3 |
Cloudflare CDN
|
Operational | 100.00% |
|
100.00% |
| #4 |
Fastly
|
Operational | 100.00% |
|
100.00% |
| #5 |
KeyCDN
|
Operational | 100.00% |
|
100.00% |
What does this measure?
Independent probes in five locations measure each service at per-check cadences: HTTP every minute, DNS every five minutes, TLS once an hour, storage every five to ten minutes. A minute is "up" only when a strict majority of reporting probes vote up; minutes with fewer than three reporting probes are excluded from the denominator. The 30-day availability above is the share of measured minutes flagged "up". Read the full methodology .